About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Manufacturing in Space
|
| Presentation Title |
Inverse Design of In-Situ Lunar Cellular Structures |
| Author(s) |
Mohammad Abu-Mualla, Fredrick N. Michael, Yayue Pan, Jida Huang |
| On-Site Speaker (Planned) |
Mohammad Abu-Mualla |
| Abstract Scope |
In-situ lunar construction using regolith-reinforced High-Density Polyethylene (HDPE) composites offers a path toward resilient habitats, but realizing cellular structures that can withstand hypervelocity micrometeoroid impacts and moonquakes requires a systematic inverse design framework. We begin by experimentally characterizing the selective-laser-sintered regolith–HDPE base material through compression testing along multiple directions, obtaining density, Young's modulus, Poisson's ratio, and stress–strain behavior to establish its transversely isotropic constitutive response. These properties anchor a large-scale dataset spanning truss topology, geometry, and linear/non-linear mechanical properties across multiple symmetry classes, generated via numerical homogenization and simulated compression. Using this dataset, we train a conditional latent diffusion model to solve the inverse design problem: predicting truss geometries that satisfy target directional mechanical properties. This data-driven approach enables the rapid generation of lattice structures tailored to absorb impact energy and resist moonquake-induced loading, advancing toward ductile, mass-efficient lunar habitat designs manufactured directly from in situ regolith resources. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, Composites |